Even though I like the iOS 10 Beta 3 tap home button to unlock and open to homescreen, slide to unlock has got to be the best implementation ever. It was so crisp, clear and accurate that I still love that implementation from iOS 1 to iOS 6.
iOS 7 - 9 somehow made it less accurate and removed the fun and life out of it.
OP's concepts look slightly out of place. The design can be tweaked a bit to better fit iOS 10 style.
The only thing I can find from using iOS 1-6 "slide to unlock" is, when you want to use your device in a hurry, that implementation could only be my burden rather than anything else. To unlock the device I need to slide on specific areas to unlock. Ugh.
iOS 7 makes it easier by allowing user to unlock device through sliding on anywhere on lock screen. This is better than iOS 1-6 already.
Starting from iOS 7, with Touch ID, user can unlock device without the need to slide most of the time. Just rest finger on home button and boom, home screen.
In this iOS 10 beta 3, user can do the same thing as if they were still using iOS 9. All they need to do is flipping a switch in accessibility setting on. And voila! Old friends return. Can this be anywhere simpler? Maybe "raise to enter home screen"? Or use some futuristic tech to intelligently detect your thought and proactively unlock your device?
Nevertheless, current method is already simple enough.
If you don't mind you can elaborate how simple iOS 1-6 method is. I fail to understand it properly.
Oh, I forgot about one thing: accuracy. But still, pressing home button is far more accurate than slide a distance on screen.